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peterv22399761
Participant
June 6, 2023
Question

cant set MXF interlaced to BFF (lower field first)

  • June 6, 2023
  • 3 replies
  • 607 views

Hi,

I need to export a documentary movie for a TV broadcast. Their requirements are:
• HD 1080i/25
• 1920 x 1080
• interlaced, bottom field first (BFF)
• 25 frames  / 50 fields per sec
• 16:9 or 21:9
• 4:2:2
• 50 Mbps (CBR)

The problem is there is no option to set the bottom field first for MXF. Why? Am I doing something wrong?
I can only set it for upper (or progressive).

I remember that it was possible in older releases of Premiere, but I may be wrong. 

It is possible to set BFF when I am exporting to prores, but they want MXF...
Thanks for help
Dominik

    This topic has been closed for replies.

    3 replies

    S
    Sami Succar
    Inspiring
    June 7, 2023

    Under format, select Apple ProRes MXF, and you can change the field order there. MXF is only a container, so if they didn't specify which codec they want, you can safey use the Apple ProRes MXF 422 HQ.

     

     

    Remote Index
    Remote Index
    June 7, 2023

    Sami Succar,

     

    Note the requested specs are 50 Mbps (CBR) and ProRes is a VBR codec (though ProRes Proxy should get you under 50Mbps at 25fps HD).

     

    R.

    S
    smrpix
    Participating Frequently
    June 6, 2023

    You can export ProRes 25i MXF BFF through Adobe Media encoder. 

    But I have the same concern as Ann, BFF is extremely unusual for broadcast.

      P
      peterv22399761Author
      Participant
      June 7, 2023

      It is strange, I know, but that's what they want and as it seems Premiere is incapable to do it. 

        Ann Bens
        Community Expert
        Ann BensCommunity Expert
        Community Expert
        June 6, 2023

        Kind of odd as upper field is usuallly the way to go with interlaced HD footage.

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